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公开(公告)号：US09431918B2
公开(公告)日：2016-08-30
申请号：US13953153
申请日：2013-07-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Di Zhang , Luis José Garcés Rivera , Ravisekhar Nadimpalli Raju , Rixin Lai , Andrew Allen Rockhill
IPC: H02M7/5387 , H02M7/217 , H02M7/757 , H02M7/487 , H02M7/483
CPC classification number: H02M7/217 , H02M7/487 , H02M7/53871 , H02M7/7575 , H02M2007/4835 , Y02E60/60
Abstract: A power converter includes at least one leg with a first string including a plurality of controllable semiconductor switches, a first connecting node, and a second connecting node, wherein the first string is operatively coupled across a first bus and a second bus. The at least one leg also includes a second string operatively coupled to the first string via the first connecting node and the second connecting node, wherein the second string includes a plurality of switching units. The first string includes a first branch and a second branch, wherein the second branch is operatively coupled to the first branch via a third connecting node and the third connecting node is coupled to a ground connection.
Abstract translation: 功率转换器包括具有包括多个可控半导体开关的第一串的至少一个支脚，第一连接节点和第二连接节点，其中第一串可跨第一总线和第二总线可操作地耦合。 所述至少一个腿还包括经由所述第一连接节点和所述第二连接节点可操作地耦合到所述第一串的第二串，其中所述第二串包括多个开关单元。 第一串包括第一分支和第二分支，其中第二分支经由第三连接节点可操作地耦合到第一分支，并且第三连接节点耦合到接地连接。
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公开(公告)号：US09325273B2
公开(公告)日：2016-04-26
申请号：US14040767
申请日：2013-09-30
Applicant: General Electric Company
Inventor： Di Zhang , Luis José Garcés , Andrew Allen Rockhill , Rixin Lai
IPC: H02P23/00 , H02M7/537 , H02J7/00 , H02P27/06 , H02M7/487 , H02M7/217 , H02P27/14 , H02P27/16 , H02P1/16 , H02M7/483
CPC classification number: H02P27/06 , H02M7/217 , H02M7/487 , H02M2007/4835 , H02P1/16 , H02P27/14 , H02P27/16
Abstract: A system for driving an electric machine is provided. The system includes a power converter coupled to an input source and the electric machine. The power converter includes a leg that includes a first and second string. The first string includes plurality of controllable semiconductor switches, a first and second connecting node. The first string is operatively coupled across a first and second bus. The second string is operatively coupled to the first string via the first and second connecting node. The second string comprises plurality of switching modules. The switching modules include fully controllable semiconductor switches and energy storage devices. The system further includes a system controller configured to provide activation commands to the controllable semiconductor switches and the switching modules such that energy stored in the energy storage device is provided to the electric machine when the machine is switched on for operation.
Abstract translation: 提供一种用于驱动电机的系统。 该系统包括耦合到输入源和电机的功率转换器。 功率转换器包括包括第一和第二串的支脚。 第一串包括多个可控半导体开关，第一和第二连接节点。 第一串可操作地耦合在第一和第二总线上。 第二串通过第一和第二连接节点可操作地耦合到第一串。 第二串包括多个开关模块。 开关模块包括完全可控的半导体开关和能量存储装置。 该系统还包括系统控制器，该系统控制器被配置为向可控半导体开关和开关模块提供启动命令，使得当机器接通操作时，存储在能量存储装置中的能量被提供给电机。
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公开(公告)号：US20160072375A1
公开(公告)日：2016-03-10
申请号：US14482969
申请日：2014-09-10
Applicant: General Electric Company
Inventor： Rui Zhou , Luis Jose Garces , Ravisekhar Nadimpalli Raju , Rixin Lai , Di Zhang
CPC classification number: H02M3/33569 , H02M1/44 , H02M2001/0058 , H02M2007/4835 , Y02B70/1491
Abstract: A system and method for series connecting electronic power devices are disclosed. In one embodiment, a switching device system includes a first upper arm electrically coupled to a first lower arm and a second upper arm electrically coupled to a second lower arm. Each of the arms include a plurality of low voltage sub-modules connected in series and each plurality of low voltage sub-modules includes an auxiliary switching device, a series switching device, and a capacitor. Each plurality of low voltage sub-modules is configured to be sequentially switched using the auxiliary switching device and the series switching device separately in the upper arms and the respective lower arms to control change in voltage over time (dV/dt) while selectively blocking a desired high voltage. Further, a capacitor voltage balancing (sorting or rotating) algorithm may be used to actively balance voltage across each plurality of low voltage sub-modules.
Abstract translation: 公开了一种用于串联电子功率器件的系统和方法。 在一个实施例中，开关装置系统包括电耦合到第一下臂的第一上臂和电耦合到第二下臂的第二上臂。 每个臂包括串联连接的多个低压子模块，并且每个多个低压子模块包括辅助开关装置，串联开关装置和电容器。 每个多个低压子模块被配置为使用辅助开关装置和串联开关装置在上臂和相应的下臂中分开地依次切换以控制电压随时间的变化（dV / dt），同时选择性地阻塞 所需高电压。 此外，可以使用电容器电压平衡（分选或旋转）算法来主动平衡每个低压子模块的电压。
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4.发明授权Power converter with a first string having controllable semiconductor switches and a second string having switching modules 有权功率转换器，具有可控半导体开关的第一串和具有开关模块的第二串公开(公告)号：US09252681B2
公开(公告)日：2016-02-02
申请号：US14014516
申请日：2013-08-30
Applicant: General Electric Company
Inventor： Di Zhang , Luis José Garcés , Andrew Allen Rockhill , Rixin Lai
CPC classification number: H02M7/537 , H02M7/487 , H02M7/5152 , H02M7/7575 , H02M2001/0003 , H02M2007/4835 , Y02E60/60
Abstract: A power converter includes at least one leg including a first string that includes controllable semiconductor switches, a first connecting node, and a second connecting node and that is operatively coupled across a first bus and a second bus. A second string is operatively coupled to the first string via the first connecting node and the second connecting node. The second string includes a plurality of switching modules wherein each of the plurality of switching modules includes a plurality of fully controllable semiconductor switches and at least one energy storage device. The power converter includes a system controller to control activation of the controllable semiconductor switches and switching modules such that a controlled electrical variable is maintained at a first predetermined reference voltage value and the average internal stored energy of the energy storage devices is maintained at a second predetermined reference value.
Abstract translation: 功率转换器包括至少一条腿，其包括包括可控半导体开关的第一串，第一连接节点和第二连接节点，并且可操作地跨越第一总线和第二总线耦合。 第二串经由第一连接节点和第二连接节点可操作地耦合到第一串。 第二串包括多个开关模块，其中多个开关模块中的每一个包括多个完全可控的半导体开关和至少一个能量存储装置。 功率转换器包括系统控制器，用于控制可控半导体开关和开关模块的激活，使得受控电变量保持在第一预定参考电压值，并且能量存储装置的平均内部存储能量保持在第二预定 参考值。
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5.发明申请METHOD AND SYSTEM FOR ARCHITECTURE, CONTROL, AND PROTECTION SYSTEMS OF MODULAR STACKED DIRECT CURRENT SUBSEA POWER SYSTEM 有权模块化堆叠式直流电源系统的结构，控制和保护系统的方法与系统公开(公告)号：US20150070802A1
公开(公告)日：2015-03-12
申请号：US14024315
申请日：2013-09-11
Applicant: General Electric Company
Inventor： Dong Dong , Rixin Lai , Song Chi , Ranjan Kumar Gupta , Di Zhang
IPC: H02H3/16
Abstract: A high-voltage DC (HVDC) power system and a method of controlling and protecting the HVDC power system includes a plurality of sending-end (SE) modules coupled in electrical series and a plurality of receiving-end (RE) power converter modules electrically coupled to said plurality of SE modules, the RE modules coupled in a switchyard configuration, the switchyard configuration including a plurality of load branches coupled together in electrical series, each load branch including a branch bypass switch configured to bypass load current around an associated load branch, and a branch protection system.
Abstract translation: 高压直流（HVDC）电力系统和控制和保护高压直流电力系统的方法包括以电串联耦合的多个发送端（SE）模块和多个接收端（RE）功率转换器模块 耦合到所述多个SE模块，所述RE模块以开关构造配置耦合，所述开关站配置包括以电串联耦合在一起的多个负载分支，每个负载分支包括分支旁路开关，所述分支旁路开关配置成绕负载分支 ，以及分支保护系统。
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Patent Agency Ranking
公开(公告)号：US20160031391A1
公开(公告)日：2016-02-04
申请号：US14789060
申请日：2015-07-01
Applicant: GENERAL ELECTRIC COMPANY
IPC: B60R16/023 , H02M1/34 , B63H21/17
CPC classification number: B60R16/023 , B60R16/03 , B63H21/17 , H02H7/1225 , H02J1/102 , H02J4/00 , H02J2001/104 , H02J2001/106 , H02M1/34
Abstract: A power system for a marine ship includes a plurality of protection zones, wherein at least two protection zones are coupled to each other via at least one bus-tie converter. Each of the protection zones includes a plurality of direct current (DC) buses and a plurality of power converters. The bus-tie converter includes at least two converter legs coupled by at least one inductor. Each converter leg includes a first branch connected with a snubber circuit. The first branch includes two outer switching devices and at least one inner switching device connected between the two outer switching devices. The first branch also includes a damping resistor coupled between the two outer switching devices to dissipate a fault current. The snubber circuit includes a combination of a diode, a resistor and a capacitor. A controller controls the operation of the plurality of power converters and the at least one bus-tie converter.
Abstract translation: 用于船舶船舶的动力系统包括多个保护区域，其中至少两个保护区域经由至少一个总线连接转换器彼此耦合。 每个保护区域包括多个直流（DC）母线和多个功率转换器。 总线连接转换器包括由至少一个电感器耦合的至少两个转换器支脚。 每个转换器支路包括与缓冲电路连接的第一支路。 第一分支包括两个外部开关装置和连接在两个外部开关装置之间的至少一个内部开关装置。 第一分支还包括耦合在两个外部开关器件之间以消散故障电流的阻尼电阻器。 缓冲电路包括二极管，电阻器和电容器的组合。 控制器控制多个电力转换器和至少一个总线连接转换器的操作。
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公开(公告)号：US20150108844A1
公开(公告)日：2015-04-23
申请号：US14058641
申请日：2013-10-21
Applicant: General Electric Company
Inventor： Rui Zhou , Luis Jose Garces , Rixin Lai
CPC classification number: H02J9/062 , H02M2007/4835 , Y10T307/696
Abstract: A power converter is provided. The power converter includes a converter leg comprising a plurality of active power link modules coupled to each other. Each of the plurality of active power link module includes exactly two semiconductor switches comprising antiparallel diodes and wherein the antiparallel diodes are coupled in parallel to the respective switches, a filter inductor coupled to a node between the two semiconductor switches, a filter capacitor coupled in parallel across the at least two semiconductor switches and a power storage element directly coupled in parallel to the filter capacitor.
Abstract translation: 提供电源转换器。 功率转换器包括转换器支路，该转换器支路包括彼此耦合的多个有源功率链路模块。 多个有源功率链路模块中的每一个包括正好两个包括反并联二极管的半导体开关，并且其中反并联二极管并联耦合到各个开关，耦合到两个半导体开关之间的节点的滤波电感器，并联耦合的滤波电容器 跨越所述至少两个半导体开关和直接耦合到滤波电容器的功率存储元件。
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公开(公告)号：US20150091488A1
公开(公告)日：2015-04-02
申请号：US14040767
申请日：2013-09-30
Applicant: General Electric Company
Inventor： Di Zhang , Luis José Garcés , Andrew Allen Rockhill , Rixin Lai
IPC: H02P27/06
CPC classification number: H02P27/06 , H02M7/217 , H02M7/487 , H02M2007/4835 , H02P1/16 , H02P27/14 , H02P27/16
Abstract: A system for driving an electric machine is provided. The system includes a power converter coupled to an input source and the electric machine. The power converter includes a leg that includes a first and second string. The first string includes plurality of controllable semiconductor switches, a first and second connecting node. The first string is operatively coupled across a first and second bus. The second string is operatively coupled to the first string via the first and second connecting node. The second string comprises plurality of switching modules. The switching modules include fully controllable semiconductor switches and energy storage devices. The system further includes a system controller configured to provide activation commands to the controllable semiconductor switches and the switching modules such that energy stored in the energy storage device is provided to the electric machine when the machine is switched on for operation.
Abstract translation: 提供一种用于驱动电机的系统。 该系统包括耦合到输入源和电机的功率转换器。 功率转换器包括包括第一和第二串的支脚。 第一串包括多个可控半导体开关，第一和第二连接节点。 第一串可操作地耦合在第一和第二总线上。 第二串通过第一和第二连接节点可操作地耦合到第一串。 第二串包括多个开关模块。 开关模块包括完全可控的半导体开关和能量存储装置。 该系统还包括系统控制器，该系统控制器被配置为向可控半导体开关和开关模块提供启动命令，使得当机器接通操作时，存储在能量存储装置中的能量被提供给电机。
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公开(公告)号：US20130162250A1
公开(公告)日：2013-06-27
申请号：US13709812
申请日：2012-12-10
Applicant: General Electric Company
Inventor： Juan Antonio Sabate , Wesley Michael Skeffington , Song Chi , Rixin Lai , Yimeng Shi , Yanjun Zhang
CPC classification number: G01R33/3614 , G01R33/3852 , G01R33/543
Abstract: A gradient amplifier system, includes: a power stage comprising a plurality of bridge amplifiers, each operates at a first switching frequency; a gradient coil coupled to the power stage and configured to produce a magnetic field proportional to a coil current signal supplied by the power stage; a controller stage coupled to an input terminal of the power stage and configured to: generate a pulse width modulated gate signal based on the coil current signal and a reference current signal, wherein the pulse width modulated gate signal is generated at a second switching frequency when a slew rate associated with the reference current signal is below a threshold rate for at least a first time period; and apply the pulse width modulated gate signal to the power stage for changing an operating frequency of each of the plurality of bridge amplifiers from the first to the second switching frequency.
Abstract translation: 一种梯度放大器系统，包括：功率级，包括多个桥式放大器，每个以第一开关频率工作; 耦合到功率级并被配置为产生与由功率级提供的线圈电流信号成比例的磁场的梯度线圈; 控制级，其耦合到所述功率级的输入端，并且被配置为：基于所述线圈电流信号和参考电流信号产生脉宽调制门信号，其中所述脉宽调制门信号以第二开关频率产生， 与参考电流信号相关联的转换速率低于至少第一时间段的阈值速率; 并且将所述脉冲宽度调制的栅极信号施加到所述功率级，以将所述多个桥接放大器中的每一个的工作频率从第一开关频率改变为第二开关频率。
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公开(公告)号：US09745038B2
公开(公告)日：2017-08-29
申请号：US14328856
申请日：2014-07-11
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Rixin Lai , Di Zhang , Dong Dong , Konrad Roman Weeber , Ravisekhar Nadimpalli Raju , Steven Michael Mankevich
CPC classification number: B63J3/00 , B60L3/0092 , B63J2003/002 , H02G3/00 , H02J1/102 , H02J7/34 , H02J2001/008
Abstract: A power system for a marine ship includes a plurality of protection zones, wherein at least two protection zones are coupled to each other via at least one bus-tie converter. Each of the protection zones includes a plurality of direct current (DC) buses; wherein DC buses which do not have same DC voltage are coupled to each other via at least one DC to DC converter. Furthermore, at least one energy source is coupled to at least one DC bus via a power electronic converter.
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